Headset holder



FIG. 1 is a top, front and right side perspective view of a headset holder showing my new design;

FIG. 2 is a top, rear and right side perspective view thereof;

FIG. 3 is a side elevational view thereof, the opposite side being identical;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a headset holder, as shown and described. 